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Q99.811

Billable

Usher syndrome, type 1

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A genetic disorder causing progressive hearing loss and vision loss (retinitis pigmentosa) that typically begins in childhood, with hearing problems usually appearing first.

Coding Tips

  • •Always code both the hearing loss and vision loss components separately when present; Usher syndrome type 1 is the most severe form
  • •Document the age of onset for both hearing and vision symptoms to support the type 1 classification

Code Hierarchy

└Q99Other chromosome abnormalities, not elsewhere classified└Q99.8Other specified chromosome abnormalities└Q99.81Usher syndrome└Q99.811Usher syndrome, type 1
└Q99.811Usher syndrome, type 1

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